Hi Greydog
The reason for not doing the bmw replacement is the 2k cost. They have agreed to the powerflow.
So they are installing a powerflow from the 2 precats on the manifold back...it had a powerflow box on it last year and that is still in good nick. From what I can work out the powerflow should do the trick but I dont want to have issues with the NOx after this is installed. I am guessing if the NOx is seeing a decent flow from the CAT it wont have any problems (current one is blocked apparently)